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Table 59. EIA 232 advanced PCI communications cable (continued)
Signal designation
Adapter connector pin
number DCE connector pin number
Transmitter Clock (TCLK) 29 15
Reciver Clock (RCLK) 26 17
Data terminal ready (DTR) 4 20
Ring Indicate (RI) 31 22
EIA 232 advanced wrap connector wiring
Table 60. EIA 232 advanced wrap connector wiring
Signal destination Wrap connector pin to pin
TD to RD, RI 2 to 3,22
RD to TD 3 to 2
RTS to CTS, TCLK 4 to 5,15
CTS to RTS 5 to 4
DSR to DTR 6 to 20
CD to DTR 8 to 20
TCLK to RTS 15 to 4
RCLK to DTR 17 to 20
DTR to CD, DSR, RCLK 20 to 17,8,6
RI to TD 22 to 2
Stage 1 EIA-232/X.21bis communications adapter cable
Table 61. EIA-232/X.21bis communications adapter cable
Signal designation
Interchange circuit
number
Adapter connector pin
number
DCE connector pin
number
Transmitted data 103 2 2
Received data 104 3 3
Request to send (RTS) 105 4 4
Ready for sending (CTS) 106 5 5
Data set ready (DSR) 107 6 6
Data terminal ready/connect data set
to line
108/2 108/1 24 20
Received line signal (carrier) detector 109 8 8
Data signal rate selector 111 43 23
Transmitter signal element timing
(DTE)
113 11 24
Transmitter signal element timing
(DCE)
114 19 15
Receiver signal element timing
(DCE)
115 21 17
Select standby
2
116 29 11
254 Service Functions V5R2